Date of Award
University Scholars Director
Dr. Christine Chaney
First Advisor/Committee Member
Dr. Daniel Schofield
Second Advisor/Committee Member
Dr. Samantha Robinson
sulfur hydrogen bonding, ir spectroscopy, red shift, ethanethiol, trimethylamine, vapor-phase IR spectroscopy, albedo effect, climate change, dimer, intermolecular forces
Hydrogen bonds are a subset of non-covalent interactions that occur between X-H — Y, in which X and Y are the very electronegative atoms. In our research, we examine the more unconventional hydrogen bond-like interactions of thiol (SH) containing molecules using vapor-phase infrared (IR) spectroscopy and ab initio computational chemistry. When the SH hydrogen bond donor complexes to a hydrogen bond acceptor, a red shift of the SH stretching mode emerges. An anharmonic oscillator local mode model is applied to the ethanethiol-trimethylamine dimer, and we determine that any IR evidence of dimerization in our experiment is likely obscured by the asymmetric absorption of CO2.
Lee, Andrew Yoonkeun, "The Spectroscopic and Computational Exploration of Sulfur Hydrogen Bonding" (2019). Honors Projects. 94.